APA (7th ed.) Citation

Pattenden, P. c. 2. J. (1987). When did Guard Duty end? The regulation of the night watch in ancient armies.

Chicago Style (17th ed.) Citation

Pattenden, Philip ca. 20. Jh. When Did Guard Duty End? The Regulation of the Night Watch in Ancient Armies. 1987.

MLA (9th ed.) Citation

Pattenden, Philip ca. 20. Jh. When Did Guard Duty End? The Regulation of the Night Watch in Ancient Armies. 1987.

Warning: These citations may not always be 100% accurate.